The gastric balloon insertion procedure is akin to a standard endoscopic procedure. While rare, potential risks such as perforation or bleeding can occur, particularly if performed by an inexperienced endoscopist. Historically, older balloon models were associated with higher incidences of bleeding, ulcers, and gastric perforations. However, modern gastric balloons exhibit a significantly reduced risk of such complications, making them exceptionally safe. Following the procedure, patients may experience an initial adaptation period. As a foreign object, typically inflated to 400-600 cc, is introduced into the stomach, the body naturally reacts by attempting to expel it. This can manifest as nausea, vomiting, retching, or increased bowel movements during the first 1-2 days. This 'tolerance phase' is temporary. Overall, the risk of complications is minimal when the procedure is performed by an experienced specialist on an appropriately selected patient. Should any unexpected symptoms arise after gastric balloon insertion, patients must consult their physician for evaluation and guidance on the subsequent course of action.